PNG 文件常常很大，是因为 PNG 设计用来精确保留像素。这对透明度、UI 图形、屏幕截图与文字密集的图片很有用，但对照片与大范围渐层可能效率不佳。
如果 PNG 包含商品照片、主视觉图片或屏幕截图，将提供用的副本转换为 WebP 可缩减文件大小。如果 PNG 是小型图标或扁平标志，节省幅度可能很小。
适合保留 PNG 的时机
- 可编辑的原始档。
- 边缘锐利的透明图形。
- 需要文字清晰的屏幕截图。
- 要求像素完全一致的作业流程。
网站传输时，请用 PNG to WebP 或 图片压缩工具 比较副本。
常见问题
为什么 PNG 比 JPG 大？
PNG 通常是无损的，能保留锐利边缘与透明度；而 JPG 会舍弃细节来缩小照片。
我应该把每个 PNG 都转成 WebP 吗？
不。请先测试。WebP 对许多大型 PNG 有帮助，但小型图标与最佳化的扁平图形可能已经很有效率。
Resources
参考资料
利用这些参考资料，在指南、对应的支持页面与内容创作者之间切换。
Convert PNG images to smaller WebP files in your browser.
打开工具Image CompressorCompress JPG, PNG, and WebP images locally with quality controls.
打开工具如何将 PNG 压缩成更小的文件了解 PNG 压缩何时有帮助、何时转成 WebP 更明智，以及如何在不破坏透明或锐利文字的情况下缩小图片大小。
阅读指南PNG vs WebP vs AVIF：该用哪种图片格式？针对网站图片、透明背景、屏幕截图、照片与浏览器支持，实用比较 PNG、WebP 与 AVIF。
阅读指南Leon PatelCreates how-to guides and photo tips that keep the advice simple, clear, and ready to use in Gift Studio.
查看作者Dylan RossChecks guides and photo tips for freshness, usefulness, and a calm editorial voice.
查看审核者打开 Gift StudioApply the guide in the editor when you are ready to make the gift.
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Use these free browser tools to prepare, edit, or convert your images.
Convert JPG photos to smaller WebP images in your browser. Free, private, and local for supported files.
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